"About a year ago, I heard that Roger wanted to design and wear a Jordan shoe on the court," Jordan said, according to Style.com. "I have followed Roger's career and have been a big fan for some time now. I definitely thought this could be a really unique and special collaboration, and when I heard that Roger wanted the shoe to be modeled after the Air Jordan 3, I was in."

The shoes are far from the only thing they have in common. Jordan won six NBA Championships. Federer is currently 33, has won more Grand Slams than any other male tennis player, and is seeking his sixth U.S. Open title this year.

Wearing the white sneakers with a red Air Jordan logo, Federer won his first-round match, beating Marinko Matosevic 6-3, 6-4, 7-6 (7-4), as Jordan sat in the second row near Vogue editor-in-chief Anna Wintour.

Federer says he's been a Jordan fan since high school – he even had a Jordan poster in his room, according to a photo tweeted by Tennis History.